Polycom RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator’s Guide

MCU Configuration for CAC Implementation

Enabling CAC Implementation

CAC is enabled by manually adding the flags to the system Configuration and setting their values as follows:

•To enable the Call Admission Control implementation in the MCU:

—CAC_ENABLE=YES

•In addition, to ensure that endpoints such as HDX remain connected to the conference for its duration when the RMX is configured with FQDN address and the Lync server is working with load balancing and holds more than one address, the following two flags must be manually added and set to:

—MS_KEEP_ALIVE_ENABLE = YES

Note: Since the keep alive is only required when the Lync server is working with load balancing and holds more than one address, the default value is NO.

—SIP_TCP_PORT_ADDR_STRATEGY = 1 (default setting)

•When Call Admission Control is enabled in the local network, by default the local the ICE channel is closed after applying CAC bandwidth management.

To change and preserve the ICE channel open throughout the call:

—PRESERVE_ICE_CHANNEL_IN_CASE_OF_LOCAL_MODE=YES.

Conferencing Behavior

Continuous Presence Conferences

In Continuous Presence conference, Lync clients connect with any allocated bandwidth.

Video Switching Conferences

In Video Switching conferences, Lync clients must connect with the same line rate as the conference, otherwise they will be connected as Secondary (Audio Only) participants.

Mitigation of the line rate requirement can be effected by modifying the system flag:

VSW_RATE_TOLERANCE_PERECENT.

This system flag determines the line rate tolerance. Possible values are: 0 - 75.

Setting this flag to 0 (0% - default) determines no line rate tolerance and the participant must connect at the conference line rate.

Setting this flag to a value between 1 and 75 determines the percentage of bandwidth that can be deducted from the required bandwidth to allow participants to connect to the conference.

For example, if you enter 20 (for 20%) as the flag value, the participant will be able to connect to the conference if the allocated line rate is up to 20% lower than the conference line rate (or between 80% to 100% of the required bandwidth). If the conference line rate is 1024Kbps, participant with a line rate between 819Kbps and 1024Kbps will be able to connect to the conference.

When a tolerance is set, the Highest Common mechanism is enabled for the conference line rate. When a participant with a lower line rate connects to the conference, the line rate of all other connected participants is reduced accordingly and when that participant disconnects from the conference, the line rate of the remaining participants is increased to the highest possible rate common to all connected participants.

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Polycom, Inc.

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Polycom RMX 1500, DOC2702A MCU Configuration for CAC Implementation, Enabling CAC Implementation, Conferencing Behavior
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DOC2702A, RMX 1500 specifications

The Polycom RMX 1500, also known by its model number DOC2702A, is a significant player in the realm of video conferencing technology. Designed to enhance collaboration across various platforms, this versatile solution caters to the communication needs of medium to large enterprises, providing high-quality video, voice, and content sharing experiences.

One of the primary features of the RMX 1500 is its unparalleled scalability. The system supports up to 150 simultaneous video endpoints, allowing organizations to expand their video conferencing capabilities as needed. This flexibility makes it an ideal solution for growing businesses that require robust communication tools. The RMX 1500 can also handle a variety of video resolutions, from standard definition to HD, ensuring that users can enjoy clear and crisp visuals during their meetings.

The Polycom RMX 1500 utilizes advanced technologies such as the Polycom RealPresence technology, which significantly enhances video quality and reliability. This technology incorporates features like Adaptive Bandwidth Management, which optimizes video streams based on available bandwidth, thus ensuring a seamless experience even in less-than-ideal network conditions. This ensures that users can engage in meetings without interruptions or quality degradation, regardless of their location.

Another notable characteristic of the RMX 1500 is its robust interoperability with a wide range of video conferencing systems and protocols. This means that businesses can easily connect with partners, clients, and colleagues using different systems, reducing the barriers to effective communication. The RMX 1500 supports various codecs and standards, including H.323 and SIP, making it a versatile choice for organizations that work with multiple platforms.

Furthermore, the RMX 1500 is equipped with tools for content sharing, allowing participants to share presentations, documents, and other materials during meetings. This promotes interactive discussions and enhances collaboration among team members. In addition, the system features an intuitive user interface, making it easy for users to schedule meetings, manage participants, and control audio and video settings.

The product also places a strong emphasis on security, providing encryption options for video and audio streams to protect sensitive information shared during conferences. This commitment to security is essential for organizations that need to meet compliance standards and safeguard intellectual property.

In summary, the Polycom RMX 1500 (DOC2702A) is a powerful video conferencing solution that combines flexibility, scalability, and high-quality performance. With its advanced technologies, interoperability, content sharing capabilities, and emphasis on security, it serves as an invaluable tool for enhancing communication and collaboration in today’s fast-paced business environment.
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